A. Asmila, Z. Basri, R. Yusuf, and H. Hawalina, “Callus Induction Of Cacao Clone Sulawesi 1 On Various Concentrations of 2,4 -D and Coconut Water Via in Vitro Culture”, agroland, vol. 4, no. 1, pp. 35-41, Jun. 2017.